diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index b070401406be6afb7dd12bac3b88309daee2c67a..ff434663d65b21dee4351ee9521c2c861544dd0e 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -2244,7 +2244,7 @@ int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans, u64 srcid,
 	int i;
 	u64 *i_qgroups;
 	struct btrfs_fs_info *fs_info = trans->fs_info;
-	struct btrfs_root *quota_root = fs_info->quota_root;
+	struct btrfs_root *quota_root;
 	struct btrfs_qgroup *srcgroup;
 	struct btrfs_qgroup *dstgroup;
 	u32 level_size = 0;
@@ -2254,6 +2254,7 @@ int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans, u64 srcid,
 	if (!test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags))
 		goto out;
 
+	quota_root = fs_info->quota_root;
 	if (!quota_root) {
 		ret = -EINVAL;
 		goto out;